Anti-blocking coal bed gas drainage and production shaft screen pipe

The utility model relates to the technical field of coal bed gas drainage and mining, and discloses an anti-blocking coal bed gas drainage and mining shaft screen pipe which comprises a screen pipe body, and two installation plates which are symmetrically distributed up and down are arranged between the left side and the right side of the inner wall of the screen pipe body. A threaded rod with one end extending to the bottom of the bottom mounting plate is arranged at the top of the top mounting plate, and two sliding rods located on the left side and the right side of the threaded rod correspondingly are arranged between the two mounting plates. According to the anti-blocking coal bed gas drainage and mining shaft screen pipe, a servo motor is started to drive a moving block to move up and down in a reciprocating mode, meanwhile, an annular cleaning brush can be driven to rotate, and therefore the annular cleaning brush is matched with rotation while moving up and down in a reciprocating mode to clean the sc